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Crawl Space Repair & Encapsulation in Seatac, WA

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Crawl spaces can harbor numerous problems, allowing water, humidity, and pests to enter through unprotected vents. This can result in mold growth, rotting wood, sagging floors, musty odors, and increased energy bills. Our comprehensive crawl space repair and encapsulation solutions include sump pumps, vapor barriers, dehumidifiers, insulation, drainage systems, vent covers, and support posts to keep your crawl space dry and energy-efficient.

Groundworks, North America's leading foundation repair company, proudly serves SeaTac, Washington, by combining the expertise of Rainy Day Crawl Space & Basement and Matvey Foundation Repair. Rainy Day focuses on crawl space repair and basement waterproofing, while Matvey specializes in foundation repair solutions. Under the Groundworks name, we provide exceptional customer service and effective crawl space solutions, ensuring every home in SeaTac remains safe and stable. Contact us today for your free inspection.

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Groundworks is Seatac's Crawl Space Repair Expert

Serving Homeowners for over 28 years

Recent Work Completed Near You

8,071 crawl spaces repaired by the Seattle South branch

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Why your neighbors trust Groundworks

We've earned 465 five star reviews.

"We had Gardner Kerin come out to inspect our property as we were looking to do some remodels and wanted to make sure the house could handle any additional weight. He was very thorough in his assessment of the home and presented us with the different options available should we like to shore up some things. Not pushy or salesy at all. We decided to work with Matvey because of their stellar reputation and honest approach with customers."

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Our in-house crews are certified and local to your area.

Our work comes with a nationally backed warranty.

Types of Crawl Space Damage in Seatac

Common Causes of your Crawl Space Problems in Seatac

Moisture and Humidity

Excess moisture and high humidity levels in the crawl space can lead to mold growth, wood rot, and structural damage. This often results from poor ventilation or water seepage.

Poor Drainage

Inadequate drainage systems can cause water to accumulate around the foundation, leading to water infiltration and increased moisture levels in the crawl space.

Open Crawl Space Vents

Open vents allow outside air and moisture to enter the crawl space, which can lead to condensation, mold growth, and pest infestations.

Foundation Cracks

Cracks in the foundation can compromise the structural integrity of your home by allowing water infiltration, which can lead to further deterioration and instability.

Plumbing Leaks

Leaks from plumbing systems can saturate the soil around the foundation, leading to erosion and weakening of the structure.

Understanding these common causes can help you take proactive measures to protect your crawl space and maintain the overall health of your home.

Crawl Space Repair Solutions We Provide For You in Seatac

Create Solid Floors for Strong Homes

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What We Do

  • Examine your crawl space closely
  • Determine the reason for joist failure
  • Make a plan to repain and stabilize

What We Use

Floor Jacks 3D Image Floor Jacks Learn More

Control Groundwater Seepage

Control Groundwater Seepage Image

What We Do

  • Identify leakage sources
  • Consider your home's unique needs
  • Install a reliable drainage system

What We Use

Drainage System 3D Image Drainage System Learn More
Drainage Matting 3D Image Drainage Matting Learn More
Sump Pump 3D Image Sump Pump Learn More

Change the Environment

Change the Environment Image

What We Do

  • Recognize ventilation insufficiences
  • Offer options for moisture control
  • Regulate humidity levels effectively

What We Use

Vapor Barrier 3D Image Vapor Barrier Learn More
Dehumidifier 3D Image Dehumidifier Learn More
Crawl Space Doors 3D Image Crawl Space Doors Learn More

Properly Insulate the Home

Properly Insulate the Home Image

What We Do

  • Diagnose insulation concerns
  • Take expert measurements
  • Deliver lasting thermal protection

What We Use

Insulation 3D Image Insulation Learn More

Our Other Services in Seatac

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Our Groundworks' Seatac Office Serves You

Our Address

18915 16th Ave S, SeaTac, Washington 98188

Contact Us

(855) 976-0804

About Us

Meet our Seatac team, see our
service area, and get financing details
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Proudly Serving Seatac and Surrounding Areas

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Trust the experts at Groundworks

How it works

Straightforward and simple process

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Schedule an
inspection

Upon arrival, our Inspector will introduce themselves and chat with you about the problems you're experiencing. Based on the information you provide them, they'll then create a plan of action to examine your home inside and out.

Receive a detailed repair plan and quote icon

Receive a detailed
repair plan and quote

Once the inspection is complete, the Inspector will sit with you and present their findings. And because we provide same-day estimates, you'll have all the cost and financing information you need to make a decision right away.

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Get the work done
when you're ready

When you're ready to move forward with repairs, we'll help you choose an installation date that works for your schedule, and notify our Installation team immediately of the upcoming work.